This report contains low streamflow information for the West Coast Natural Resource Region. Please see the Provincial Drought Portal for information about provincial conditions. Data is provided as is and may be unverified and uncorrected. Users assume all responsibility for use and interpretation of data within.
Data is sourced from the Water Survey of Canada, and was analyzed by the BC River Forecast Centre for the West Coast Natural Resource Region. Questions regarding data analysis can be sent to the BC River Forecast Centre; questions regarding interpretation can be sent to Jaroslaw Szczot, Senior Aquatic Ecologist.
This report was generated on 17 August 2021, 14:09 PM.
7 Day average streamflow percentiles compare current stream flows (averaged over the last seven days) to the same seven day period in a site’s historic record. Streamflows are averaged over seven days to minimize the impact of short term fluctuations, and gives a better representation of the overall trend in streamflow. Percentiles give an indication of how likely a seven day streamflow value is; for example, the 50th percentile represents normal conditions, where a streamflow percentile of 10 indicates that this value has occurred only 10% of the time within the history of the site. Data is sourced from real-time and historic Water Survey of Canada data.
In general, a streamflow value of:
The below map shows percentiles using both a rolling average over the last seven days of discharge as well as mean discharge over the last 24 hours.
Map data was updated on 17 August 2021, 14:09 PM.
The table below lists all stations with 7 day discharge percentiles below their 10th percentile. If a location is not listed here there are no immediate low streamflow concerns (i.e., 7 day discharge is > 10th percentile).
Regulation Status refers to whether flows are natural or regulated by human activities such as dams; this (as well as the Basin Area) were determined by the Water Survey of Canada.
Data was updated on 17 August 2021, 14:09 PM.| Station Name | ID | Regulation Status | Basin Area (km2) | Latest 7-Day Discharge (m3/s) | Percentile Category - 7 Day Discharge | Percentile - 7 Day Discharge | Last 24 hour Discharge (m3/s) | Percentile - Last 24 Hour Discharge | Percentile Category - Last 24 Hour Discharge |
|---|---|---|---|---|---|---|---|---|---|
| SAN JUAN RIVER NEAR PORT RENFREW | 08HA010 | Natural | 578.0 | 0.57 | Low | 0.00 | 0.51 | 0.00 | Low |
| HARRIS CREEK NEAR LAKE COWICHAN | 08HA070 | Natural | 28.0 | 0.03 | Low | 0.00 | 0.04 | 0.00 | Low |
| COTTONWOOD CREEK HEADWATERS | 08HA072 | Natural | 13.0 | 0.02 | Low | 0.00 | 0.02 | 0.00 | Low |
| SALMON RIVER BELOW CAMPBELL LAKE DIVERSION | 08HD032 | NA | NA | 0.42 | Low | 0.00 | 0.41 | 0.00 | Low |
| ELK RIVER ABOVE CAMPBELL LAKE | 08HD018 | Regulated | 132.0 | 1.65 | Low | 0.00 | 1.57 | 11.54 | Below Normal (10-24) |
| SAN JOSEF RIVER BELOW SHARP CREEK | 08HF006 | Natural | 64.4 | 0.40 | Low | 0.00 | 0.50 | 14.29 | Below Normal (10-24) |
| OYSTER RIVER BELOW WOODHUS CREEK | 08HD011 | Natural | 302.0 | 1.07 | Much below normal (<10) | 2.17 | 1.01 | 2.17 | Much below normal (<10) |
| GOLD RIVER BELOW UCONA RIVER | 08HC001 | Regulated | 992.0 | 5.07 | Much below normal (<10) | 3.12 | 4.83 | 3.12 | Much below normal (<10) |
| SALMON RIVER ABOVE MEMEKAY RIVER | 08HD007 | Regulated | 439.0 | 0.83 | Much below normal (<10) | 3.33 | 0.80 | 5.00 | Much below normal (<10) |
| TOFINO CREEK NEAR THE MOUTH | 08HB086 | Natural | 38.6 | 0.00 | Much below normal (<10) | 4.00 | NaN | NA | Not ranked |
| CREST LAKE NEAR HIGHWAY 28 | 08HC006 | Natural | NA | 0.02 | Much below normal (<10) | 4.35 | 0.01 | 0.00 | Low |
| SALMON RIVER NEAR SAYWARD | 08HD006 | Regulated | 1210.0 | 4.31 | Much below normal (<10) | 4.69 | 4.14 | 3.12 | Much below normal (<10) |
| BINGS CREEK NEAR THE MOUTH | 08HA016 | Natural | 15.5 | 0.01 | Much below normal (<10) | 5.08 | 0.01 | 10.17 | Below Normal (10-24) |
| PUNTLEDGE RIVER AT COURTENAY | 08HB006 | Regulated | 583.0 | 12.25 | Much below normal (<10) | 6.25 | 7.67 | 1.56 | Much below normal (<10) |
| CRUICKSHANK RIVER NEAR THE MOUTH | 08HB074 | Natural | 213.0 | 3.82 | Much below normal (<10) | 7.69 | 3.51 | 7.69 | Much below normal (<10) |
| ZEBALLOS RIVER NEAR ZEBALLOS | 08HE006 | Regulated | 178.0 | 3.89 | Much below normal (<10) | 8.47 | 3.74 | 10.17 | Below Normal (10-24) |
| SARITA RIVER NEAR BAMFIELD | 08HB014 | Natural | 162.0 | 0.50 | Much below normal (<10) | 8.96 | 0.49 | 11.94 | Below Normal (10-24) |
| CAMPBELL RIVER NEAR CAMPBELL RIVER | 08HD003 | Regulated | 1470.0 | 30.84 | Much below normal (<10) | 10.00 | 30.86 | 12.00 | Below Normal (10-24) |
Environmental flow needs for fish during the summer will range from juvenile rearing flows near 10-20% (preferred) Long-Term Mean Annual Discharge (LT MAD) to adult salmon/char passage flows (>20% LT MAD) required prior to spawning. Sub-standard flows (<10% LT MAD) can affect fish populations by reducing the area and quality of riffle habitats that generate fish food and aeration. Flows nearing 5% LT MAD are considered sub-optimal for fish rearing and migration, indicate a degradation of instream habitat and may require restrictions on water use. A map of realtime streamflow data can be accessed at the BC River Forecast Centre website. LT MAD values were calculated by dividing the 7 day mean discharge by the mean annual discharge (MAD) calculated from historic data. MAD values were calculated for stations with at least 5 years of data in the historic record only from years with complete data using the R package fasstr.
Map data was updated on 17 August 2021, 14:09 PM.
Any stations with LT MAD values of less than or equal to 10% LT MAD are shown in the table below; sites below 5% MAD are highlighted. The report shows conditions as of today.
Regulation Status refers to whether flows are natural or regulated by human activities such as dams; this (as well as the Basin Area) were determined by the Water Survey of Canada.
Data was updated on 17 August 2021, 14:09 PM.
| Station Name | ID | Regulation Status | Basin Area (km2) | MAD (m3/s) | Latest 7 Day Discharge (m3/s) | % MAD | Last 24 hour Discharge (m3/s) |
|---|---|---|---|---|---|---|---|
| TOFINO CREEK NEAR THE MOUTH | 08HB086 | Natural | 38.60 | 6.83 | 0.00 | 0.05 | NaN |
| MILLSTONE RIVER AT NANAIMO | 08HB032 | Regulated | 86.20 | 2.54 | 0.01 | 0.32 | 0.01 |
| LITTLE OYSTER RIVER AT YORKE ROAD | 08HD023 | Natural | 38.00 | 1.12 | 0.00 | 0.32 | 0.00 |
| DOVE CREEK NEAR THE MOUTH | 08HB075 | Natural | 41.10 | 1.98 | 0.02 | 0.79 | 0.01 |
| ZEBALLOS RIVER AT MOOK PEAK | 08HE008 | Natural | 14.60 | 1.23 | 0.01 | 0.96 | 0.01 |
| CREST LAKE NEAR HIGHWAY 28 | 08HC006 | Natural | NA | 1.44 | 0.02 | 1.07 | 0.01 |
| SAN JUAN RIVER NEAR PORT RENFREW | 08HA010 | Natural | 578.00 | 48.49 | 0.57 | 1.17 | 0.51 |
| HARRIS CREEK NEAR LAKE COWICHAN | 08HA070 | Natural | 28.00 | 2.94 | 0.03 | 1.18 | 0.04 |
| RENFREW CREEK NEAR PORT RENFREW | 08HA069 | Natural | 8.12 | 1.62 | 0.03 | 1.98 | 0.03 |
| BINGS CREEK NEAR THE MOUTH | 08HA016 | Natural | 15.50 | 0.47 | 0.01 | 2.06 | 0.01 |
| CHEMAINUS RIVER NEAR WESTHOLME | 08HA001 | Natural | 355.00 | 18.65 | 0.38 | 2.06 | 0.36 |
| COTTONWOOD CREEK HEADWATERS | 08HA072 | Natural | 13.00 | 0.70 | 0.02 | 2.15 | 0.02 |
| PUGH CREEK NEAR NAHWITTI LAKE | 08HF012 | Natural | 22.30 | 2.12 | 0.05 | 2.21 | 0.03 |
| KOKSILAH RIVER AT COWICHAN STATION | 08HA003 | Natural | 209.00 | 9.72 | 0.22 | 2.28 | 0.22 |
| SARITA RIVER NEAR BAMFIELD | 08HB014 | Natural | 162.00 | 19.78 | 0.50 | 2.54 | 0.49 |
| CARNATION CREEK AT THE MOUTH | 08HB048 | Natural | 10.30 | 0.80 | 0.02 | 2.7 | 0.02 |
| SALMON RIVER BELOW CAMPBELL LAKE DIVERSION | 08HD032 | NA | NA | 13.29 | 0.42 | 3.16 | 0.41 |
| SOUTH NANAIMO RIVER NEAR JUNCTION | 08HB092 | Regulated | 211.00 | 13.64 | 0.44 | 3.24 | 0.58 |
| BROWNS RIVER NEAR COURTENAY | 08HB025 | Natural | 87.90 | 5.35 | 0.20 | 3.71 | 0.18 |
| TSOLUM RIVER NEAR COURTENAY | 08HB011 | Regulated | 251.00 | 10.68 | 0.41 | 3.84 | 0.38 |
| SIMPSON CREEK NEAR KOPRINO HARBOUR | 08HF013 | Natural | 16.30 | 1.36 | 0.06 | 4.67 | 0.08 |
| GARBAGE CREEK NEAR THE MOUTH | 08HA068 | Natural | 2.88 | 0.20 | 0.01 | 4.98 | 0.01 |
| SAN JOSEF RIVER BELOW SHARP CREEK | 08HF006 | Natural | 64.40 | 7.59 | 0.40 | 5.3 | 0.50 |
| SALMON RIVER ABOVE MEMEKAY RIVER | 08HD007 | Regulated | 439.00 | 14.23 | 0.83 | 5.82 | 0.80 |
| GOLD RIVER BELOW UCONA RIVER | 08HC001 | Regulated | 992.00 | 84.29 | 5.07 | 6.01 | 4.83 |
| SALMON RIVER NEAR SAYWARD | 08HD006 | Regulated | 1210.00 | 64.12 | 4.31 | 6.72 | 4.14 |
| COWICHAN RIVER NEAR DUNCAN | 08HA011 | Regulated | 826.00 | 52.69 | 3.98 | 7.55 | 3.61 |
| KLASKISH RIVER NEAR KLASKINO INLET | 08HE009 | Natural | 33.30 | 6.74 | 0.52 | 7.66 | 0.46 |
| OYSTER RIVER BELOW WOODHUS CREEK | 08HD011 | Natural | 302.00 | 13.84 | 1.07 | 7.73 | 1.01 |
| SPROAT RIVER NEAR ALBERNI | 08HB008 | Regulated | 351.00 | 37.88 | 2.98 | 7.86 | 2.82 |
| TARUNDL CREEK NEAR QUEEN CHARLOTTE | 08OA005 | Natural | 10.60 | 0.66 | 0.05 | 8.1 | 0.04 |
| TSITIKA RIVER BELOW CATHERINE CREEK | 08HF004 | Natural | 365.00 | 22.51 | 1.97 | 8.74 | 1.77 |
| NIMPKISH RIVER ABOVE WOSS RIVER | 08HF005 | Natural | 783.00 | 59.46 | 5.40 | 9.08 | 5.04 |
The recommended mean weekly maximum temperature (which is the mean of the max daily temperatures from the last seven days) for the protection of all fish species should not exceed 20 degrees C and the maximum daily temperature should not exceed 23degrees C. Reaching either one of these thresholds may trigger fisheries closures and water use restrictions within the affected watersheds. Only a small subset of stations from the Water Survey of Canada collect temperature data in addition to streamflow data; thus the number of sites shown here is much smaller than for streamflow.
Map data was updated on 17 August 2021, 14:09 PM.
The table below shows stations with a 7-day maximum daily temperature (i.e., the max daily temperature from the past 7 days) above 20degC. Also shown are the days from the past week in which the maximum daily temperature exceeded either 20degC or 23degC (critical thresholds for fish health). If no sites are present, all sites with water temperature data show 7-day maximum daily temperatures below 20degC.
Regulation Status refers to whether flows are natural or regulated by human activities such as dams; this (as well as the Basin Area) were determined by the Water Survey of Canada.
Data was updated on 17 August 2021, 14:09 PM.
| Station Name | ID | Regulation Status | Basin Area (km2) | Mean Max Daily Temp (last 7 days; deg C) | Max temp over last 24 hours (degC) | Dates above 20 degC in last 7 days | Dates above 23 degC in last 7 days |
|---|---|---|---|---|---|---|---|
| ASH RIVER BELOW MORAN CREEK | 08HB023 | Regulated | 387.0 | 25.19 | 23 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 |
| CHEMAINUS RIVER NEAR WESTHOLME | 08HA001 | Natural | 355.0 | 24.44 | 22.41 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16 |
| COWICHAN RIVER NEAR DUNCAN | 08HA011 | Regulated | 826.0 | 23.39 | 21.5 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16 |
| COWICHAN RIVER AT LAKE COWICHAN | 08HA002 | Regulated | 594.0 | 23.39 | 22.79 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16 |
| MILLSTONE RIVER AT NANAIMO | 08HB032 | Regulated | 86.2 | 22.65 | 20.93 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 | Aug 12; Aug 13; Aug 14 |
| KOKSILAH RIVER AT COWICHAN STATION | 08HA003 | Natural | 209.0 | 22.17 | 21.33 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 | NA |
| NANAIMO RIVER NEAR CASSIDY | 08HB034 | Regulated | 676.0 | 21.41 | 22.2 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 | NA |
| SALMON RIVER BELOW CAMPBELL LAKE DIVERSION | 08HD032 | NA | NA | 20.71 | 18.51 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15 | NA |
| ATNARKO RIVER NEAR THE MOUTH | 08FB006 | Natural | 2550.0 | 20.69 | 19.38 | Aug 12; Aug 13; Aug 14; Aug 15; Aug 16 | NA |
| BINGS CREEK NEAR THE MOUTH | 08HA016 | Natural | 15.5 | 20.3 | 19.15 | Aug 12; Aug 13; Aug 14; Aug 15 | NA |
The following table contains all of the drought-relevant statistics for all stations within the region.
These statistics include:
Regulation Status refers to whether flows are natural or regulated by human activities such as dams; this (as well as the Basin Area) were determined by the Water Survey of Canada.
Data was updated on 17 August 2021, 14:09 PM.
| Station Name | ID | Record Length | Basin Area (km2) | Regulation Status | Last 24 hour Discharge (m3/s) | Percentile - Last 24 Hour Discharge | Percentile Category - Last 24 Hour Discharge | Latest 7 Day Discharge (m3/s) | Percentile - 7 Day Discharge | Percentile Category - 7 Day Discharge | Percent of Daily Mean 7 Day Discharge (%; Historic Mean 7 Day Discharge in m3/s) | Percent of Daily Median 7 Day Discharge (%; Historic Median 7 Day Discharge in m3/s) | Historic Min 7 Day Discharge (m3/s) | MAD (m3/s) | % MAD | MAD Category | Mean Max Daily Temp (last 7 days; deg C) | Max temp over last 24 hours (degC) | Dates above 23 degC in last 7 days | Dates above 20 degC in last 7 days |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SAN JUAN RIVER NEAR PORT RENFREW | 08HA010 | 59 | 578.00 | Natural | 0.51 | 0.00 | Low | 0.57 | 0.00 | Low | 22 (2.61) | 25 (2.61) | 0.70 | 48.49 | 1.17 | 1 to 5% | 19.35 | 17.14 | NA | Aug 12; Aug 13 |
| HARRIS CREEK NEAR LAKE COWICHAN | 08HA070 | 22 | 28.00 | Natural | 0.04 | 0.00 | Low | 0.03 | 0.00 | Low | 29 (0.12) | 39 (0.12) | 0.05 | 2.94 | 1.18 | 1 to 5% | 15.37 | 14.25 | NA | NA |
| COTTONWOOD CREEK HEADWATERS | 08HA072 | 21 | 13.00 | Natural | 0.02 | 0.00 | Low | 0.02 | 0.00 | Low | 30 (0.05) | 38 (0.05) | 0.02 | 0.70 | 2.15 | 1 to 5% | 14.94 | 14.3 | NA | NA |
| SALMON RIVER BELOW CAMPBELL LAKE DIVERSION | 08HD032 | 12 | NA | NA | 0.41 | 0.00 | Low | 0.42 | 0.00 | Low | 30 (1.4) | 30 (1.4) | 0.57 | 13.29 | 3.16 | 1 to 5% | 20.71 | 18.51 | NA | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15 |
| CREST LAKE NEAR HIGHWAY 28 | 08HC006 | 23 | NA | Natural | 0.01 | 0.00 | Low | 0.02 | 4.35 | Much below normal (<10) | 15 (0.1) | 26 (0.1) | 0.01 | 1.44 | 1.07 | 1 to 5% | NA | NA | NA | NA |
| ZEBALLOS RIVER AT MOOK PEAK | 08HE008 | 22 | 14.60 | Natural | 0.01 | 0.00 | Low | 0.01 | 13.64 | Below Normal (10-24) | 30 (0.04) | 40 (0.04) | 0.01 | 1.23 | 0.96 | <1% | NA | NA | NA | NA |
| PUNTLEDGE RIVER AT COURTENAY | 08HB006 | 66 | 583.00 | Regulated | 7.67 | 1.56 | Much below normal (<10) | 12.25 | 6.25 | Much below normal (<10) | 58 (20.97) | 63 (20.97) | 7.89 | 41.09 | 29.81 | 20 to 100% | NA | NA | NA | NA |
| OYSTER RIVER BELOW WOODHUS CREEK | 08HD011 | 47 | 302.00 | Natural | 1.01 | 2.17 | Much below normal (<10) | 1.07 | 2.17 | Much below normal (<10) | 33 (3.25) | 39 (3.25) | 0.96 | 13.84 | 7.73 | 5 to 10% | NA | NA | NA | NA |
| GOLD RIVER BELOW UCONA RIVER | 08HC001 | 64 | 992.00 | Regulated | 4.83 | 3.12 | Much below normal (<10) | 5.07 | 3.12 | Much below normal (<10) | 34 (14.73) | 43 (14.73) | 4.84 | 84.29 | 6.01 | 5 to 10% | NA | NA | NA | NA |
| SALMON RIVER NEAR SAYWARD | 08HD006 | 64 | 1210.00 | Regulated | 4.14 | 3.12 | Much below normal (<10) | 4.31 | 4.69 | Much below normal (<10) | 33 (12.97) | 43 (12.97) | 3.75 | 64.12 | 6.72 | 5 to 10% | NA | NA | NA | NA |
| SALMON RIVER ABOVE MEMEKAY RIVER | 08HD007 | 61 | 439.00 | Regulated | 0.80 | 5.00 | Much below normal (<10) | 0.83 | 3.33 | Much below normal (<10) | 35 (2.35) | 42 (2.35) | 0.68 | 14.23 | 5.82 | 5 to 10% | NA | NA | NA | NA |
| CRUICKSHANK RIVER NEAR THE MOUTH | 08HB074 | 39 | 213.00 | Natural | 3.51 | 7.69 | Much below normal (<10) | 3.82 | 7.69 | Much below normal (<10) | 50 (7.66) | 63 (7.66) | 2.88 | 17.66 | 21.63 | 20 to 100% | NA | NA | NA | NA |
| BINGS CREEK NEAR THE MOUTH | 08HA016 | 60 | 15.50 | Natural | 0.01 | 10.17 | Below Normal (10-24) | 0.01 | 5.08 | Much below normal (<10) | 48 (0.02) | 48 (0.02) | 0.01 | 0.47 | 2.06 | 1 to 5% | 20.3 | 19.15 | NA | Aug 12; Aug 13; Aug 14; Aug 15 |
| ZEBALLOS RIVER NEAR ZEBALLOS | 08HE006 | 61 | 178.00 | Regulated | 3.74 | 10.17 | Below Normal (10-24) | 3.89 | 8.47 | Much below normal (<10) | 55 (7.06) | 65 (7.06) | 2.71 | 25.36 | 15.35 | 10 to 20% | NA | NA | NA | NA |
| ELK RIVER ABOVE CAMPBELL LAKE | 08HD018 | 30 | 132.00 | Regulated | 1.57 | 11.54 | Below Normal (10-24) | 1.65 | 0.00 | Low | 50 (3.33) | 61 (3.33) | 1.71 | 10.33 | 15.96 | 10 to 20% | NA | NA | NA | NA |
| COWICHAN RIVER NEAR DUNCAN | 08HA011 | 60 | 826.00 | Regulated | 3.61 | 11.67 | Below Normal (10-24) | 3.98 | 13.33 | Below Normal (10-24) | 70 (5.72) | 73 (5.72) | 2.91 | 52.69 | 7.55 | 5 to 10% | 23.39 | 21.5 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 |
| SARITA RIVER NEAR BAMFIELD | 08HB014 | 69 | 162.00 | Natural | 0.49 | 11.94 | Below Normal (10-24) | 0.50 | 8.96 | Much below normal (<10) | 31 (1.63) | 49 (1.63) | 0.39 | 19.78 | 2.54 | 1 to 5% | 17.84 | 15.87 | NA | NA |
| CAMPBELL RIVER NEAR CAMPBELL RIVER | 08HD003 | 51 | 1470.00 | Regulated | 30.86 | 12.00 | Below Normal (10-24) | 30.84 | 10.00 | Much below normal (<10) | 59 (51.88) | 68 (51.88) | 27.51 | 97.88 | 31.5 | 20 to 100% | NA | NA | NA | NA |
| NIMPKISH RIVER ABOVE WOSS RIVER | 08HF005 | 29 | 783.00 | Natural | 5.04 | 13.79 | Below Normal (10-24) | 5.40 | 17.24 | Below Normal (10-24) | 50 (10.84) | 65 (10.84) | 3.48 | 59.46 | 9.08 | 5 to 10% | NA | NA | NA | NA |
| SAN JOSEF RIVER BELOW SHARP CREEK | 08HF006 | 28 | 64.40 | Natural | 0.50 | 14.29 | Below Normal (10-24) | 0.40 | 0.00 | Low | 40 (1.01) | 47 (1.01) | 0.41 | 7.59 | 5.3 | 5 to 10% | NA | NA | NA | NA |
| TARUNDL CREEK NEAR QUEEN CHARLOTTE | 08OA005 | 26 | 10.60 | Natural | 0.04 | 20.00 | Below Normal (10-24) | 0.05 | 20.00 | Below Normal (10-24) | 38 (0.14) | 60 (0.14) | 0.02 | 0.66 | 8.1 | 5 to 10% | NA | NA | NA | NA |
| KOKSILAH RIVER AT COWICHAN STATION | 08HA003 | 70 | 209.00 | Natural | 0.22 | 20.59 | Below Normal (10-24) | 0.22 | 17.65 | Below Normal (10-24) | 63 (0.35) | 69 (0.35) | 0.14 | 9.72 | 2.28 | 1 to 5% | 22.17 | 21.33 | NA | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 |
| COWICHAN RIVER AT LAKE COWICHAN | 08HA002 | 88 | 594.00 | Regulated | 4.95 | 20.69 | Below Normal (10-24) | 5.43 | 22.99 | Below Normal (10-24) | 76 (7.12) | 76 (7.12) | 1.77 | 44.79 | 12.12 | 10 to 20% | 23.39 | 22.79 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 |
| TSITIKA RIVER BELOW CATHERINE CREEK | 08HF004 | 44 | 365.00 | Natural | 1.77 | 21.43 | Below Normal (10-24) | 1.97 | 23.81 | Below Normal (10-24) | 50 (3.96) | 66 (3.96) | 1.21 | 22.51 | 8.74 | 5 to 10% | NA | NA | NA | NA |
| CHEMAINUS RIVER NEAR WESTHOLME | 08HA001 | 72 | 355.00 | Natural | 0.36 | 21.74 | Below Normal (10-24) | 0.38 | 21.74 | Below Normal (10-24) | 48 (0.8) | 61 (0.8) | 0.20 | 18.65 | 2.06 | 1 to 5% | 24.44 | 22.41 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 |
| MILLSTONE RIVER AT NANAIMO | 08HB032 | 39 | 86.20 | Regulated | 0.01 | 22.86 | Below Normal (10-24) | 0.01 | 20.00 | Below Normal (10-24) | 27 (0.03) | 40 (0.03) | 0.00 | 2.54 | 0.32 | <1% | 22.65 | 20.93 | Aug 12; Aug 13; Aug 14 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 |
| PUGH CREEK NEAR NAHWITTI LAKE | 08HF012 | 22 | 22.30 | Natural | 0.03 | 23.81 | Below Normal (10-24) | 0.05 | 33.33 | Normal (25-75) | 43 (0.11) | 78 (0.11) | 0.01 | 2.12 | 2.21 | 1 to 5% | NA | NA | NA | NA |
| SPROAT RIVER NEAR ALBERNI | 08HB008 | 97 | 351.00 | Regulated | 2.82 | 25.00 | Normal (25-75) | 2.98 | 22.92 | Below Normal (10-24) | 41 (7.2) | 49 (7.2) | 0.66 | 37.88 | 7.86 | 5 to 10% | NA | NA | NA | NA |
| NANAIMO RIVER NEAR CASSIDY | 08HB034 | 55 | 676.00 | Regulated | 4.17 | 25.45 | Normal (25-75) | 4.08 | 18.18 | Below Normal (10-24) | 83 (4.92) | 87 (4.92) | 2.92 | 39.69 | 10.29 | 10 to 20% | 21.41 | 22.2 | NA | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 |
| RENFREW CREEK NEAR PORT RENFREW | 08HA069 | 22 | 8.12 | Natural | 0.03 | 28.57 | Normal (25-75) | 0.03 | 28.57 | Normal (25-75) | 53 (0.06) | 80 (0.06) | 0.02 | 1.62 | 1.98 | 1 to 5% | 14.18 | 13.89 | NA | NA |
| CARNATION CREEK AT THE MOUTH | 08HB048 | 48 | 10.30 | Natural | 0.02 | 29.79 | Normal (25-75) | 0.02 | 31.91 | Normal (25-75) | 43 (0.05) | 72 (0.05) | 0.00 | 0.80 | 2.7 | 1 to 5% | 14.39 | 13.6 | NA | NA |
| LITTLE QUALICUM RIVER NEAR QUALICUM BEACH | 08HB029 | 33 | 237.00 | Regulated | 1.36 | 34.38 | Normal (25-75) | 1.34 | 18.75 | Below Normal (10-24) | 74 (1.82) | 80 (1.82) | 1.00 | 11.60 | 11.59 | 10 to 20% | NA | NA | NA | NA |
| SOUTH NANAIMO RIVER NEAR JUNCTION | 08HB092 | 23 | 211.00 | Regulated | 0.58 | 34.78 | Normal (25-75) | 0.44 | 13.04 | Below Normal (10-24) | 43 (1.02) | 57 (1.02) | 0.32 | 13.64 | 3.24 | 1 to 5% | NA | NA | NA | NA |
| NILE CREEK NEAR BOWSER | 08HB022 | 61 | 15.00 | Regulated | 0.15 | 35.00 | Normal (25-75) | 0.15 | 23.33 | Below Normal (10-24) | 83 (0.18) | 88 (0.18) | 0.06 | 0.99 | 15.04 | 10 to 20% | NA | NA | NA | NA |
| LITTLE OYSTER RIVER AT YORKE ROAD | 08HD023 | 26 | 38.00 | Natural | 0.00 | 36.00 | Normal (25-75) | 0.00 | 28.00 | Normal (25-75) | 18 (0.02) | 35 (0.02) | 0.00 | 1.12 | 0.32 | <1% | NA | NA | NA | NA |
| ATNARKO RIVER NEAR THE MOUTH | 08FB006 | 54 | 2550.00 | Natural | 19.48 | 39.62 | Normal (25-75) | 20.84 | 35.85 | Normal (25-75) | 82 (25.48) | 91 (25.48) | 12.16 | 27.96 | 74.54 | 20 to 100% | 20.69 | 19.38 | NA | Aug 12; Aug 13; Aug 14; Aug 15; Aug 16 |
| SALLOOMT RIVER NEAR HAGENSBORG | 08FB004 | 55 | 159.00 | Natural | 6.35 | 40.74 | Normal (25-75) | 7.13 | 42.59 | Normal (25-75) | 85 (8.39) | 87 (8.39) | 4.07 | 8.80 | 80.96 | 20 to 100% | NA | NA | NA | NA |
| ICY CREEK NEAR THE MOUTH | 08GE003 | 19 | 23.00 | Natural | 5.55 | 42.11 | Normal (25-75) | 7.59 | 73.68 | Normal (25-75) | 110 (6.88) | 116 (6.88) | 3.76 | 2.88 | 263.68 | > 100% | NA | NA | NA | NA |
| QUINSAM RIVER NEAR CAMPBELL RIVER | 08HD005 | 65 | 278.00 | Regulated | 1.90 | 43.08 | Normal (25-75) | 1.96 | 47.69 | Normal (25-75) | 92 (2.13) | 97 (2.13) | 1.02 | 8.56 | 22.84 | 20 to 100% | NA | NA | NA | NA |
| TSOLUM RIVER NEAR COURTENAY | 08HB011 | 63 | 251.00 | Regulated | 0.38 | 43.33 | Normal (25-75) | 0.41 | 53.33 | Normal (25-75) | 79 (0.52) | 114 (0.52) | 0.02 | 10.68 | 3.84 | 1 to 5% | NA | NA | NA | NA |
| DOVE CREEK NEAR THE MOUTH | 08HB075 | 35 | 41.10 | Natural | 0.01 | 44.12 | Normal (25-75) | 0.02 | 54.29 | Normal (25-75) | 39 (0.04) | 156 (0.04) | 0.00 | 1.98 | 0.79 | <1% | NA | NA | NA | NA |
| PALLANT CREEK NEAR QUEEN CHARLOTTE | 08OB002 | 54 | 76.70 | Natural | 1.15 | 44.23 | Normal (25-75) | 1.25 | 49.06 | Normal (25-75) | 66 (1.91) | 98 (1.91) | 0.23 | 8.09 | 15.47 | 10 to 20% | 17.99 | 17.27 | NA | NA |
| HONNA RIVER NEAR THE MOUTH | 08OA004 | 33 | 45.30 | Natural | 0.18 | 45.45 | Normal (25-75) | 0.21 | 45.45 | Normal (25-75) | 63 (0.33) | 84 (0.33) | 0.08 | NA | NA | Not ranked | NA | NA | NA | NA |
| SIMPSON CREEK NEAR KOPRINO HARBOUR | 08HF013 | 20 | 16.30 | Natural | 0.08 | 47.37 | Normal (25-75) | 0.06 | 26.32 | Normal (25-75) | 63 (0.1) | 79 (0.1) | 0.04 | 1.36 | 4.67 | 1 to 5% | NA | NA | NA | NA |
| JUMP CREEK AT THE MOUTH | 08HB041 | 50 | 62.20 | Regulated | 1.07 | 48.98 | Normal (25-75) | 1.02 | 38.78 | Normal (25-75) | 92 (1.1) | 95 (1.1) | 0.23 | 4.76 | 21.33 | 20 to 100% | NA | NA | NA | NA |
| BROWNS RIVER NEAR COURTENAY | 08HB025 | 48 | 87.90 | Natural | 0.18 | 52.38 | Normal (25-75) | 0.20 | 45.45 | Normal (25-75) | 45 (0.44) | 90 (0.44) | 0.05 | 5.35 | 3.71 | 1 to 5% | NA | NA | NA | NA |
| KLASKISH RIVER NEAR KLASKINO INLET | 08HE009 | 22 | 33.30 | Natural | 0.46 | 54.55 | Normal (25-75) | 0.52 | 54.55 | Normal (25-75) | 68 (0.76) | 97 (0.76) | 0.17 | 6.74 | 7.66 | 5 to 10% | NA | NA | NA | NA |
| WAKEMAN RIVER BELOW ATWAYKELLESSE RIVER | 08GF007 | 13 | 698.00 | Natural | 40.85 | 58.33 | Normal (25-75) | 46.82 | 41.67 | Normal (25-75) | 92 (50.98) | 95 (50.98) | 26.30 | 79.10 | 59.19 | 20 to 100% | 13.62 | 13.86 | NA | NA |
| ASH RIVER BELOW MORAN CREEK | 08HB023 | 58 | 387.00 | Regulated | 3.90 | 59.65 | Normal (25-75) | 4.69 | 84.21 | Above normal (76-90) | 113 (4.15) | 122 (4.15) | 3.17 | 16.85 | 27.83 | 20 to 100% | 25.19 | 23 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 | Aug 11; Aug 12; Aug 13; Aug 14; Aug 15; Aug 16; Aug 17 |
| YAKOUN RIVER NEAR PORT CLEMENTS | 08OA002 | 56 | 480.00 | Natural | 3.89 | 62.50 | Normal (25-75) | 3.70 | 51.79 | Normal (25-75) | 71 (5.25) | 100 (5.25) | 0.81 | 30.54 | 12.12 | 10 to 20% | 19.41 | 17.94 | NA | Aug 13; Aug 14 |
| QUINSAM RIVER BELOW LOWER QUINSAM LAKE | 08HD027 | 24 | 215.00 | Regulated | 1.06 | 62.50 | Normal (25-75) | 1.13 | 70.83 | Normal (25-75) | 128 (0.88) | 148 (0.88) | 0.38 | 6.41 | 17.6 | 10 to 20% | NA | NA | NA | NA |
| PREMIER CREEK NEAR QUEEN CHARLOTTE | 08OA003 | 47 | NA | Natural | 0.00 | 75.56 | Above normal (76-90) | 0.00 | 67.39 | Normal (25-75) | Inf (0) | Inf (0) | 0.00 | 0.02 | 13 | 10 to 20% | 16.66 | 15.48 | NA | NA |
| GARBAGE CREEK NEAR THE MOUTH | 08HA068 | 23 | 2.88 | Natural | 0.01 | 78.26 | Above normal (76-90) | 0.01 | 43.48 | Normal (25-75) | 101 (0.01) | 101 (0.01) | 0.00 | 0.20 | 4.98 | 1 to 5% | 12.93 | 13.02 | NA | NA |
| ENGLISHMAN RIVER NEAR PARKSVILLE | 08HB002 | 48 | 319.00 | Regulated | 1.56 | 79.17 | Above normal (76-90) | 1.52 | 70.83 | Normal (25-75) | 125 (1.22) | 141 (1.22) | 0.29 | 13.38 | 11.39 | 10 to 20% | NA | NA | NA | NA |
| QUINSAM RIVER AT ARGONAUT BRIDGE | 08HD021 | 27 | 84.20 | Regulated | 1.04 | 81.48 | Above normal (76-90) | 1.04 | 77.78 | Above normal (76-90) | 132 (0.79) | 149 (0.79) | 0.36 | 2.10 | 49.63 | 20 to 100% | NA | NA | NA | NA |
| KLINAKLINI RIVER EAST CHANNEL (MAIN) NEAR THE MOUTH | 08GE002 | 43 | 5780.00 | Natural | 772.40 | 83.33 | Above normal (76-90) | 897.00 | 92.86 | Much above normal (>90) | 127 (705.14) | 127 (705.14) | 491.14 | 301.03 | 297.97 | > 100% | 7.91 | 7.5 | NA | NA |
| PUNTLEDGE RIVER BELOW DIVERSION | 08HB084 | 28 | 479.00 | Regulated | 8.89 | 85.71 | Above normal (76-90) | 13.89 | 96.43 | Much above normal (>90) | 180 (7.72) | 204 (7.72) | 5.74 | 16.43 | 84.54 | 20 to 100% | NA | NA | NA | NA |
| WANNOCK RIVER AT OUTLET OF OWIKENO LAKE | 08FA002 | 66 | 3900.00 | Natural | 595.07 | 85.94 | Above normal (76-90) | 517.22 | 53.12 | Normal (25-75) | 98 (527.84) | 102 (527.84) | 315.14 | 323.98 | 159.65 | > 100% | NA | NA | NA | NA |
| BELLA COOLA RIVER ABOVE HAMMER CREEK | 08FB011 | 9 | NA | NA | 347.33 | 100.00 | High | 358.83 | 100.00 | High | 166 (215.63) | 164 (215.63) | 192.43 | 114.64 | 313 | > 100% | NA | NA | NA | NA |
| TOFINO CREEK NEAR THE MOUTH | 08HB086 | 25 | 38.60 | Natural | NaN | NA | Not ranked | 0.00 | 4.00 | Much below normal (<10) | 1 (0.69) | 1 (0.69) | 0.00 | 6.83 | 0.05 | <1% | NA | NA | NA | NA |
| KEOGH RIVER NEAR PORT HARDY | 08HF014 | 4 | NA | Regulated | 0.12 | NA | Not ranked | 0.16 | NA | Not ranked | 60 (0.26) | 74 (0.26) | 0.15 | NA | NA | Not ranked | 19.71 | 18.6 | NA | Aug 11; Aug 12; Aug 13; Aug 14 |
| EVE RIVER BELOW KUNNUM CREEK | 08HF015 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA (NA) | NA (NA) | NA | NA | NA | Not ranked | NA | NA | NA | NA |